| Post: | Secretary |
| Insignia: | Secretary of the State of Connecticut Seal.png |
| Insigniacaption: | Seal of the Secretary of the State |
| Body: | the State of Connecticut |
| Incumbent: | Stephanie Thomas |
| Incumbentsince: | January 4, 2023 |
| Type: | Secretary |
| Termlength: | 4 years |
| Formation: | 1639 |
| First: | Edward Hopkins |
| Website: | Official homepage of the Connecticut Secretary of State |
The secretary of the state of Connecticut is one of the constitutional officers of the U.S. state of Connecticut. (The definite article is part of the legal job title.) It is an elected position in the state government and has a term length of four years.
The Secretary of the State's Office is composed of two divisions:
| Name | Town | Term of service | Years of service |
| Edward Hopkins | Hartford | 1639–1641 | 2 yrs. |
| Thomas Welles | Hartford | 1641–1648 | 7 yrs. |
| John Cullick | Hartford, O | 1648–1658 | 10 yrs. |
| Daniel Clark | Windsor, O | 1658–1664, 1665–1667 | 8 yrs. |
| John Allyn | Hartford, O | 1664–1665, 1667–1696 | 30 yrs. |
| Eleazer Kimberly | Glastonbury, O | 1696–1709 | 13 yrs. |
| William Whiting | Hartford, O | 1709 | 3 mo. |
| Caleb Stanly | Hartford, O | 1709–1712 | 3 yrs. |
| Richard Lord | Hartford, O | 1712 | 17 d. |
| Hezekiah Wyllys | Hartford, O | 1712–1735 | 23 yrs. |
| George Wyllys | Hartford, O | 1735–1796 | 61 yrs. |
Connecticut ratified the United States Constitution and gained statehood in 1788.
| Image | Name | Town | Political party | Term of service | |
|---|---|---|---|---|---|
| George Wyllys | Hartford | 1788–1796 | |||
| Samuel Wyllys | Hartford | 1796–1810 | |||
| Thomas Day | Hartford | 1810–1835 | |||
| Royal Ralph Hinman | Southbury | 1835–1842 | |||
| Noah A. Phelps | Hartford | 1842–1844 | |||
| Daniel P. Tyler | Pomfret | 1844–1846 | |||
| Charles W. Bradley | Hartford | 1846–1847 | |||
| John B. Robertson | New Haven | 1847–1849 | |||
| Roger H. Mills | N. Hartford | Whig | 1849–1850 | ||
| Hiram Weed | Danbury | Democratic | 1850 | ||
| John P. C. Mather | New London | Democratic | 1850–1854 | ||
| Oliver H. Perry | Fairfield | Whig | 1854–1855 | ||
| Nehemiah D. Sperry | New Haven | American | 1855–1857 | ||
| Orville H. Platt | Meriden | American, Republican | 1857–1858 | ||
| John Boyd | Winchester | Republican | 1858–1861 | ||
| James Hammond Trumbull | Hartford | Republican | 1861–1866 | ||
| Leverett E. Pease | Somers | Union | 1866–1869 | ||
| Hiram Appleman | Groton | Republican | 1869–1870 | ||
| Thomas M. Waller | New London | Democratic | 1870–1871 | ||
| Hiram Appleman | Groton | Republican | 1871–1873 | ||
| D. W. Edgecomb | Fairfield | Republican | 1873 | ||
| Marvin H. Sanger | Canterbury | Democratic | 1873–1877 | ||
| Dwight Morris | Bridgeport | Democratic | 1877-–1879 | ||
| David Torrance | Derby | Republican | 1879–1881 | ||
| Charles E. Searls | Thompson | Republican | 1881–1883 | ||
| D. Ward Northrop | Middletown | Democratic | 1883–1885 | ||
| Charles A. Russell | Killingly | Republican | 1885–1887 | ||
| Leverett M. Hubbard | Wallingford | Republican | 1887–1889 | ||
| R. Jay Walsh | Greenwich | Republican | 1889–1893 | ||
| John J. Phelan | Bridgeport | Democratic | 1893–1895 | ||
| William C. Mowry | Norwich | Republican | 1895–1897 | ||
| 60px | Charles Phelps | Rockville | Republican | 1897–1899 | |
| Huber Clark | Willimantic | Republican | 1899–1901 | ||
| Charles G. R. Vinal | Middletown | Republican | 1901–1905 | ||
| Theodore Bodenwein | New London | Republican | 1905–1909 | ||
| Matthew H. Rogers | Bridgeport | Republican | 1909–1913 | ||
| Albert Phillips | Stamford | Democratic | 1913–1915 | ||
| Charles D. Burnes | Greenwich | Republican | 1915–1917 | ||
| Frederick L. Perry | New Haven | Republican | 1917–1921 | ||
| Donald J. Warner | Salisbury | Republican | 1921–1923 | ||
| Francis A. Pallotti | Hartford | Republican | 1923–1929 | ||
| William L. Higgins | Coventry | Republican | 1929–1933 | ||
| John A. Danaher | Hartford | Republican | 1933–1935 | ||
| C. John Satti | New London | Democratic | 1935–1939 | ||
| Sara B. Crawford | Westport | Republican | 1939–1941 | ||
| Chase G. Woodhouse | New London | Democratic | 1941–1943 | ||
| Frances B. Redick | Newington | Republican | 1943–1945 | ||
| Charles J. Prestia | New Britain | Democratic | 1945–1947 | ||
| Frances B. Redick | Newington | Republican | 1947–1949 | ||
| Winifred McDonald | Waterbury | Democratic | 1949–1951 | ||
| Alice K. Leopold | Weston | Republican | 1951–1953 | ||
| Charles B. Keats | Bridgeport | Republican | 1953–1955 | ||
| Mildred P. Allen | Hartford | Republican | 1955–1959 | ||
| Ella Grasso | Windsor Locks | Democratic | 1959–1971 | ||
| Gloria Schaffer | Woodbridge | Democratic | 1971–1978 | ||
| Henry S. Cohn | West Hartford | Democratic | 1978–1979 | ||
| Barbara B. Kennelly | Hartford | Democratic | 1979–1982 | ||
| Maura L. Melley | Wethersfield | Democratic | 1982–1983 | ||
| Julia Tashjian | Windsor | Democratic | 1983–1991 | ||
| Pauline R. Kezer | Plainville | Republican | 1991–1995 | ||
| Miles S. Rapoport | West Hartford | Democratic | 1995–1999 | ||
| Susan Bysiewicz | Middletown | Democratic | 1999–2011 | ||
| Denise Merrill | Mansfield | Democratic | 2011–2022 | ||
| Mark Kohler | North Haven | Democratic | 2022–2023 | ||
| Stephanie Thomas | Norwalk | Democratic | 2023–present |